FI118821B - Device for opening / closing valves or the like - Google Patents

Description

118821

The present invention relates to a device for opening or closing valves or the like.

There are many types of hand valves and many sizes. The smallest ones run very small flows, while some plants use very massive valves that require a lot of power, especially if the valves are relatively infrequently used, or the process conditions are such that they may become entangled and not closed / opened by one man. not easy.

There may be hundreds of valves in larger production facilities, so it can be well understood that there is a great deal of work involved in closing and opening valves during major operations. Especially if the valves are only used during, for example, annual outages or major outages, there may be a large number of stuck valves that require a lot of extra work. Twisting is a job that requires physical strength, but it is also a job that involves considerable risk of stress, etc. injury.

• · ** Strong rotations often cause some degree of rupture and similar injuries. In addition, these operations take a considerable amount of time away from productive work.

• · • · · • •. · ». 25 A fairly common valve structure is so-called. a spool valve in which rotation of the handwheel causes the valve stem to rise and lower, respectively. . ·. the attached slide opens and closes the flow channel. There is a thread between the spindle and the handwheel »! · *. ·· *. a twisted joint through which a linear motion is transmitted to the spindle as the handwheel is rotated ... *.

* · 30 • · The diameter of the handwheel on large valves can be up to a meter.

• · · *; [; * Of course, this gives you a lot of power to get around, but there are still many times that are too slow to do the job.

2 118821

Some attempts are made in the art to open / close valves using a motor-driven aid. For example, a device is known which has a counter piece specifically and permanently fitted to each valve through which rotation takes place. One known alternative is to use a drill or similar external auxiliary device to aid in turning. It is clear that large plants have many different types of valves. In order to have a suitable specific operating end for all valves to be used, there must be many in number which, in practice, are extremely difficult to install permanently in each or to change from one valve to another, and especially to carry with a large arsenal.

It is an object of the present invention to provide a device for opening / closing valves which has been confirmed to be suitable for various types of valves and which is usable wherever suitable propulsion is found for it, in particular compressed air. The structure of the device according to the invention is designed with regard to both usability and occupational safety. Likewise, the device is still simple and inexpensive to manufacture.

The foregoing and other advantages and advantages of the present invention may be obtained as set forth in the appended claims.

20 • i • · !. * The invention will now be described in more detail with reference to the accompanying drawings, · • «\. which show a preferred embodiment of the invention.

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Thus: • * · «· · ... 25

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Figure 1 is a side elevational view of the device of the invention and a * * * *. Figure 2 shows the same device in oblique view.

The figures, which may be viewed in parallel for the sake of better illustration, thus illustrate one embodiment of the invention which, of course, is not an example of several embodiments within the scope of the invention which fall within the scope of the invention. In Figures 1 and 2, the device is in its working position connected to a valve for closing / opening it.

118821 3

Thus, the main parts of the device 1 according to the invention are as follows. Inlet 2 supplies the unit with propulsion, especially compressed air. On the other hand, instead of the input connection, it may be, for example, an electrical connection for driving the device by means of an electric motor 5. For ease of handling, the device may typically include a shaft portion 3 of suitable length. A suitable operating switch is located in a convenient location, particularly adjacent to the shaft 3. The actual torque head is designated by reference numeral 4.

If necessary, the device according to the invention employs arms 5 and 6, 10 of which have an attachment member 7 which is mounted on the valve body so that the valve body rests between or around its parts. The distance between the parts of the mounting member is at best adjustable to suit different constructions and can be locked in these positions. The arm 6 is preferably adjustable in length such that the arm 6 passes through a loop or loop 5 'at the end of the arm 5 in a sliding and lockable position. It will be appreciated that there are a plurality of adjustable arm constructions, whereby a suitable construction is selected for use with the invention. With this stiffening, manual control of the torque forces is unnecessary, although under normal conditions, this stiffening is not required when handling valves that do not cling badly.

20 • ·!. "Propulsion force, such as pressure medium, is applied from the joint 2 to a rotary motor 4 or · rotary movement motor or the like, which produces a torque · · · · ♦ force transmitted to the axis of the torque head. Rotation is optional, either clockwise or anticlockwise. do you want to shut down or • · # 25 open the device.

• · • · ·. The valve itself may consist of a valve body 8, a valve stem 9 and a manual * ··. ***. wheel 10. Depending on the type of valve, hardware structures may vary • f *]. some of the above problems are caused by variations in the handwheel structure. The handwheel 10 may have two or more sides and may have a variable shape, so that an apparatus design which fits into all structures is sought according to the present invention. Since, as shown in the figures, the spindle 9, when opened, is raised above the handwheel 10, the device must also adapt to that structure. Of course, the valve itself is not within the scope of the present invention.

The torsion head 4 is comprised of a body and a rotatably driven rotating assembly mounted on the body and transmitted to it by a power machine. The rotation mechanism itself is not described in more detail here, since rotary pneumatic tools, for example, are completely conventional techniques. Most often, the rotation mechanisms are based on interlocking sprockets. The torsion head is in fact annular, whereby a valve 9 spindle 9 can be fitted through the opening 11 in the center of the torsion head 4. The opening 11 is wide enough to allow any thickness of a normally used spindle 9 to pass freely through it.

In this embodiment, the hollow shaft 12, through which a substantially substantially disk-like, axially centered 15-hole portion 14, hereinafter referred to as a drive wheel, passes through the torque head 4, is integral with the shaft. In turn, the desired number of sleeves 13 is connected to the upper portion of the disc 14.

From the level of the underside of the disc 14, pins 15 project from the inside of the sleeves 13, in particular spring-loaded. When the pins 15 are subjected to an inward pushing force, they push into the sleeves 13 against the spring load. The sleeve-pin combinations 13,15 rotate with the shaft 12 rotating a disk-like drive wheel 14, with it.

By means of pins 15, a situation is achieved in which the device according to the invention fits • ·. *! *. any bobbin section that the handwheel 10 may have. The pins that hit • · ·, ···. 25 at the sides of the handwheel 10, push in. Those in the ··· * free space, on the other hand, remain in the protruding state and take the handwheel when hit. . *. against the lateral torsional forces against them. The pins 15 sec ·· continue to rest in the direction of the torque on the drive wheel 14, through which openings they pass.

30 * ·. ·. Reference numeral 16 denotes a means for securing the device of the invention in a position such that the pivoting arms of one end of the device 16 are pivoted around its spindle at one end and prevent the device from coming loose during use. Interactively engaging the pivot pin 17 in a symmetrical, interlocked manner, typically with a tooth, preferably the means 16 are secured to the rim of the drive wheel 14 so as to be soluble along the outer edge of the disc to ensure that the means 16 can be moved the number of the means 16 can be selected as desired, usually a few.The means 16 can also be constructed loose, only to be fitted if necessary.

10 If necessary, the parts 16 can be locked to the periphery so that they can also be used to receive torsional force in addition to / instead of the pins.

The number of bushings 13 / pins 15 is the desired number, in any case several. The quantity is selected according to the object if the devices are made to a particular object for which the type of valves 15 is known. The device also performs well as a general device, for example at the pin density shown in the figures.

As mentioned above, parts of the overall device 1 for improved control, denoted by reference numerals 5,6 and 7, are optional. They are just one .. 20 examples of what kind of equipment can be used if one is usually needed.

S * · »!. There are other options. The same applies to instruments 16.

• ·· • mmm mmm • m m ···. The use of a practical embodiment is as follows. The device is connected to a suitable • · plug such as a compressed air supply network or an electric appliance ***. 25 Sat to the mains. The torsion head 4 is threaded around the valve stem 9 and the device is lowered against the handwheel 10. The pins 15 • · * hit the handwheel sides; push in and the others settle in between the sides. Attaching means 16 ···: ***: Use support arms 5,6 and 7, if necessary, and if necessary, select ··· rotation direction, ie valve closing or opening direction, and actuate · · 30 rotations for as long as desired to open or closure is imminent. been. The device is then disconnected from the valve.

• · · • · · • * ··· * m m m mmm 6 118821

Although only valves have been discussed above, it will be obvious to those skilled in the art that the device of the invention can also be used for other operations where rotational motion plays a significant role.

With regard to valves, it may also be mentioned that the device according to the invention is also well suited for opening and closing valves in which the spindle does not extend above the pivoting wheel, but as said, the invention also allows opening and closing of valves in which the spindle rises above the pivoting wheel. It should also be noted that the diameter of the drive wheel 14 and the positioning of the tap-10 pi / sleeve assemblies 13,15 on the drive wheel are determined on a case-by-case basis, but preferably so that the structure fits most valve structures.

Other modifications, not specifically mentioned, within the scope of the inventive idea and the appended claims are possible.

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Claims (10)

118821 Apparatus for opening and closing valves or the like using a rotatably actuating and actuating device (1) 5 having a rotatable drive wheel (14), characterized in that the drive wheel (14) has a plurality of recessed pins (15). Device according to Claim 1, characterized in that the pins (15) are inserted through the drive wheel (14). 10 Device according to Claim 1, characterized in that the pins (15) are arranged in sleeve-like parts (13), in which they can fall against the spring load when they hit an obstacle. Device according to Claim 1, characterized in that the sleeve-like parts are fixed to the drive wheel (14) in a substantially transverse direction with respect to its plane. Device according to one of the preceding claims, characterized in that the device has an auxiliary arm (5,6, 7) which, in use, rests on the valve body 20 to provide additional support. ♦ · • 9 \ t Device according to one of the preceding claims, characterized in that the torque head (4) of the device S „I * (1), the shaft part (12) extending therefrom and its drive wheel (14) are provided with a central opening in the valve stem (9). ) for the passage 25 Φ 9 · ♦ · · Device according to one of the preceding claims, characterized in that the drive wheel (14) is provided with fastening means (16,17) for attaching the valve to the spool. • ·· ·· «• '♦ • · ··· Device according to Claim 6, characterized in that the fastening means (16, · · · · · · 17) are slidable along the outer circumference of the torsion ring (14). Device according to Claim 6, characterized in that the fastening means (16, 17) are lockable to receive forces. Β 118821 Device according to one of the preceding claims, characterized in that the device is pneumatic and has a reversible direction of rotation. 5